Sewing machine speed regulating device and sewing machine

Abstract

The utility model is applicable to the technical field of sewing machines, and provides a sewing machine speed regulation device and a sewing machine, the sewing machine speed regulation device comprises a pedal device, a first control chip and an isolation power supply, the first control chip is electrically connected with the pedal device and is used for receiving regulation signals output by the pedal device; the isolation power source is connected with the first control chip and the pedal device and used for supplying power to the first control chip and the pedal device. The isolating power supply supplies power to the pedal device, so that the situation of electric leakage caused by skin breakage of a power line mounted on the pedal can be effectively prevented, and the use safety of the sewing machine is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewing machines, and in particular relates to a sewing machine speed regulating device and a sewing machine. Background Art

[0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material, so that one or more layers of sewing material are interwoven or sewn together.

[0003] At present, the pedal speed control device of sewing machines is basically a Hall device + magnet structure, in which the magnet is attached to the mechanical connecting rod of the pedal, and the sensor circuit of the Hall device is powered by a non-isolated power supply. Since the magnet and the Hall device are physically isolated, the insulation requirements are met. The power supply of the sensor circuit of the Hall device is powered by a double-insulated wire, which also meets the insulation requirements. However, the power cord that powers the pedal is easily touched by the operator, and there is a risk of the power cord being broken and leaking electricity. Utility Model Content

[0004] The embodiment of the utility model provides a sewing machine speed regulating device, aiming to solve the problem of leakage risk in the existing sewing machine speed regulating device.

[0005] The utility model is implemented in this way: a sewing machine speed regulating device comprises:

[0006] Pedal device;

[0007] A first control chip, the first control chip is electrically connected to the pedal device and is used to receive a regulating signal output by the pedal device;

[0008] An isolated power supply is connected to the first control chip and the pedal device, and is used to supply power to the first control chip and the pedal device.

[0009] Further, the pedal device includes an adjustable sensor and a mechanical linkage;

[0010] The adjustment end of the adjustable sensor is connected to the mechanical connecting rod;

[0011] The adjustable sensor is electrically connected to the first control chip and is used for outputting an adjusted signal to the first control chip.

[0012] Further, the pedal device includes a Hall element, a magnet and a mechanical connecting rod;

[0013] The magnet is connected to the mechanical linkage;

[0014] The Hall element is connected to the first control chip and cooperates with the magnet, and is used to output a sensing signal of the sensing magnet to the first control chip.

[0015] Furthermore, the sewing machine speed regulating device also includes a main control chip, a first power supply and a communication isolation chip;

[0016] The first power supply is connected to the main control chip and the communication isolation chip, and is used to supply power to the main control chip and the communication isolation chip;

[0017] The main control chip is communicatively connected with the first control chip via the communication isolation chip.

[0018] Furthermore, the sewing machine speed regulating device also includes a first load component, and the first load component is electrically connected to the first control chip.

[0019] Furthermore, the sewing machine speed regulating device also includes a second load component, and the second load component is electrically connected to the main control chip.

[0020] Furthermore, the sewing machine speed regulating device also includes a transformer, which includes an input winding, a first output winding and a second output winding. The input winding is connected to the power input terminal, the first output winding is connected to the first power supply, and the second output winding is connected to the isolation power supply.

[0021] In a second aspect, the present application also provides a sewing machine, comprising the sewing machine speed regulating device as described above.

[0022] The beneficial effect of the present application is that the sewing machine speed regulating device of the present application includes a pedal device, a first control chip and an isolated power supply, the first control chip is electrically connected to the pedal device, and is used to receive the adjustment signal output by the pedal device, and the isolated power supply is connected to the first control chip and the pedal device, and is used to power the first control chip and the pedal device. Powering the pedal device through the isolated power supply can effectively prevent leakage caused by the power cord of the pedal device being broken, thereby ensuring the safety of the sewing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of an embodiment of a sewing machine speed regulating device provided in the present application.

[0024] Explanation of the accompanying drawings: 100, pedal device; 200, first control chip; 300, isolated power supply; 400, main control chip; 500, first power supply; 600, communication isolation chip; 710, button; 720, lighting; 730, electromagnet load; 810, first motor; 820, second motor; 900, transformer; 910, power input terminal. DETAILED DESCRIPTION

[0025] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. The examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model, and should not be construed as a limitation to the present utility model. In addition, it should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "left", "right", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of the present utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection, an electrical connection or a connection capable of mutual communication; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed in itself. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0031] The sewing machine speed regulating device of the present application includes a pedal device, a first control chip and an isolated power supply, wherein the first control chip is electrically connected to the pedal device and is used to receive a regulating signal output by the pedal device, and the isolated power supply is connected to the first control chip and the pedal device and is used to supply power to the first control chip and the pedal device. Supplying power to the pedal device through the isolated power supply can effectively prevent leakage caused by the power cord of the pedal device being broken, thereby ensuring the safety of the sewing machine.

[0032] Embodiment 1

[0033] like Figure 1 As shown, one embodiment of the present application provides a sewing machine speed regulating device, comprising:

[0034] Pedal device 100;

[0035] A first control chip 200, the first control chip 200 is electrically connected to the pedal device 100, and is used to receive a regulating signal output by the pedal device 100;

[0036] The isolated power supply 300 is connected to the first control chip 200 and the pedal device 100 , and is used to supply power to the first control chip 200 and the pedal device 100 .

[0037] During implementation, the sewing machine speed regulating device provided by the present application is used to regulate the speed of the sewing machine. Usually, the sewing machine is provided with a power output device such as a motor, and the sewing needle and other actions are driven by the power output device such as the motor to realize the sewing function. The sewing machine speed regulating device provided by the present application is used to regulate the speed of the power output device such as the motor.

[0038] The pedal device 100 is used for an operator to operate. For example, the pedal device 100 is arranged at the bottom of the sewing machine so that the operator can operate the pedal device 100 by stepping on the pedal device 100.

[0039] The first control chip 200 and the isolated power supply 300 are both arranged in the sewing machine. The first control chip 200 is electrically connected to the pedal device 100 so as to receive the adjustment signal output by the pedal device 100. For example, under normal conditions, the pedal device 100 is not acted upon by an external force, and the pedal device 100 does not output an adjustment signal, the first control chip 200 does not move, and the power output parts such as the motor do not move. When the operator steps on the pedal device 100 with his foot, the pedal device 100 outputs an adjustment signal, and the first control chip 200 receives the adjustment signal and outputs a drive signal to the power output parts such as the motor, thereby controlling the action of the power output parts such as the motor to realize the sewing function.

[0040] The isolated power supply 300 is used to power the first control chip 200 and the pedal device 100. Compared with the traditional method of using an ordinary power supply to power the pedal device 100, the present application uses the isolated power supply 300 to power the pedal device 100, which can effectively prevent leakage caused by broken power cord of the pedal device, thereby ensuring the safety of the sewing machine.

[0041] In some alternative embodiments, the pedal device 100 includes an adjustable sensor and a mechanical linkage;

[0042] The adjustment end of the adjustable sensor is connected to the mechanical connecting rod;

[0043] The adjustable sensor is electrically connected to the first control chip 200 and is used to output an adjusted signal to the first control chip 200 .

[0044] The mechanical connecting rod can adjust the adjustable sensor under the operation of the operator. For example, the mechanical connecting rod is a lever, one end of the lever is for the operator to operate, and the other end of the lever is connected to the adjustment end of the adjustable sensor. The pedal device 100 has a simple structure and is relatively simple to produce. In addition, compared with the traditional pedal device 100 using a Hall sensor and a magnet, which requires additional device circuits for compensation, the pedal device 100 of the present application includes an adjustable sensor and a mechanical connecting rod, which does not require additional device circuits for compensation and has a simpler circuit structure.

[0045] Optionally, the adjustable sensor includes an adjustable resistor or other sensors, which is not limited.

[0046] It should be noted that the above mechanical linkages being levers and the structures of the mechanical linkages and adjustable sensors are examples of an embodiment of the present application, rather than specific limitations on the present application. In some other embodiments, the mechanical linkages and adjustable sensors may also adopt other structural components, which are not limited.

[0047] As a possible implementation manner, the pedal device 100 may also adopt a traditional pedal structure. For example, the pedal device 100 includes a Hall element, a magnet, and a mechanical linkage;

[0048] The magnet is connected to the mechanical linkage;

[0049] The Hall element is connected to the first control chip 200 and cooperates with the magnet to output an induction signal of the magnet to the first control chip 200.

[0050] The Hall element is an electronic device that utilizes the Hall effect. It operates based on the principle of the Hall effect, that is, when an electric current passes through a conductor located in a magnetic field, a voltage difference will be generated on both sides of the conductor, which will not be elaborated here.

[0051] Optionally, the sewing machine speed regulation device provided by the present application further includes a main control chip 400, a first power supply 500, and a communication isolation chip 600;

[0052] The first power supply 500 is connected to the main control chip 400 and the communication isolation chip 600 to supply power to the main control chip 400 and the communication isolation chip 600;

[0053] The main control chip 400 is communicatively connected to the first control chip 200 through the communication isolation chip 600.

[0054] During implementation, the first power supply 500 is an ordinary power supply. In the traditional solution, the pedal device 100 is connected to the first power supply 500 and powered by the first power supply 500, resulting in a risk of power cord peeling and leakage.

[0055] During implementation, the sewing machine speed regulation device provided by the present application further includes a first load component, and the first load component is electrically connected to the first control chip 200. Optionally, the first load component includes but is not limited to a button 710, lighting 720, and an electromagnet load 730, etc. Among them, the button 710 refers to the operation buttons on the sewing machine, such as a power start button, a lighting control button, etc., the lighting 720 refers to the lighting 720 system on the sewing machine, including but not limited to bulbs, LED lights, etc., and the electromagnet load 730 refers to the electromagnetic devices on the sewing machine, such as electromagnetic switches, etc., which will not be elaborated here.

[0056] In some possible embodiments, the communication isolation chip 600 is also connected to the isolation power supply 300, and the communication isolation chip 600 can be powered by the isolation power supply 300 and / or the first power supply 500.

[0057] Optionally, the sewing machine speed control device provided in this application further includes a second load component, and the second load component is electrically connected to the main control chip 400. During implementation, the second load component includes, but is not limited to, a first motor 810 and a second motor 820. Both the first motor 810 and the second motor 820 are connected to the main control chip 400. The main control chip 400 and the first control chip 200 are communicatively connected through the communication isolation chip 600. When the first control chip 200 receives relevant control information, such as the adjustment information of the pedal device 100, it can output communication information to the main control chip 400, and then the main control chip 400 controls the first motor 810 and the second motor 820 to work to achieve the sewing function. Optionally, when the first control chip 200 receives relevant control information, such as the control information of the key 710, the first control chip 200 controls the corresponding components to work, such as controlling the lighting 720 to turn on.

[0058] Furthermore, the sewing machine speed control device provided in this application further includes a transformer 900. The transformer 900 includes an input winding, a first output winding, and a second output winding. The input winding is connected to the power input terminal 910, the first output winding is connected to the first power supply 500, and the second output winding is connected to the isolation power supply 300.

[0059] The transformer 900 is used to convert the external power supply into a voltage signal suitable for the sewing machine. Among them, the input winding of the transformer 900 is connected to the power input terminal 910, and the power input terminal 910 is the input terminal of the external power supply. The first power supply 500 is powered through the first output winding, and the isolation power supply 300 is powered through the second output winding. That is to say, the external power supply is converted into the voltage of the first power supply 500 through the transformer 900 to power the main control chip 400 and the communication isolation chip 600 through the first power supply 500. Optionally, the second load component is also powered by the first power supply 500. Similarly, the external power supply is converted into the voltage of the isolation power supply 300 through the transformer 900 to power the first control chip 200 and the pedal device 100 through the isolation power supply 300. Optionally, the first load component and the communication isolation chip 600 can also be powered by the isolation power supply 300.

[0060] Embodiment 2

[0061] In some alternative embodiments, this application also provides a sewing machine, including the sewing machine speed control device as described above.

[0062] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the structure and implementation principle of the sewing machine speed regulating device described above can refer to the corresponding structure and implementation principle in the aforementioned embodiment 1, and will not be repeated here.

[0063] The sewing machine speed regulating device of the present application includes a pedal device 100, a first control chip 200 and an isolated power supply 300. The first control chip 200 is electrically connected to the pedal device 100 and is used to receive the adjustment signal output by the pedal device 100. The isolated power supply 300 is connected to the first control chip 200 and the pedal device 100 and is used to supply power to the first control chip 200 and the pedal device 100. Supplying power to the pedal device 100 through the isolated power supply 300 can effectively prevent leakage caused by the power cord of the pedal device being broken, thereby ensuring the safety of the sewing machine.

[0064] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sewing machine speed regulating device, characterized in that, Comprising: A pedal device; A first control chip, electrically connected to the pedal device, for receiving an adjustment signal output by the pedal device; An isolated power supply, connected to the first control chip and the pedal device, for supplying power to the first control chip and the pedal device.

2. The sewing machine speed regulating device according to claim 1, characterized in that, The pedal device includes an adjustable sensor and a mechanical link; The adjustment end of the adjustable sensor is connected to the mechanical link; The adjustable sensor is electrically connected to the first control chip, for outputting an adjusted signal to the first control chip.

3. The sewing machine speed regulating device according to claim 1, wherein, The pedal device includes a Hall element, a magnet and a mechanical link; The magnet is connected to the mechanical link; The Hall element is connected to the first control chip and cooperates with the magnet, for outputting an induction signal sensing the magnet to the first control chip.

4. The sewing machine speed regulating device according to claim 1, characterized in that, The sewing machine speed control device further includes a main control chip, a first power supply and a communication isolation chip; The first power supply is connected to the main control chip and the communication isolation chip, for supplying power to the main control chip and the communication isolation chip; The main control chip is communicatively connected to the first control chip through the communication isolation chip.

5. The sewing machine speed regulating device according to claim 1 or 4, characterized in that, The sewing machine speed control device further includes a first load component, electrically connected to the first control chip.

6. The sewing machine speed control device according to claim 4, characterized in that, The sewing machine speed control device further includes a second load component, electrically connected to the main control chip.

7. The sewing machine speed regulating device according to claim 4, wherein, The sewing machine speed control device further includes a transformer, which includes an input winding, a first output winding and a second output winding. The input winding is connected to a power input terminal, the first output winding is connected to the first power supply, and the second output winding is connected to the isolated power supply.

8. A sewing machine, characterized in that, Including the sewing machine speed control device according to any one of claims 1 to 7.

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